VN751S STMicroelectronics, VN751S Datasheet - Page 11

• Manufacturer Part Number: VN751S
• Description: IC DRIVER HIGH SIDE 8-SOIC
• Manufacturer: STMicroelectronics
• Type: High Sider

Specifications of VN751S

• Input Type: Non-Inverting
• Number Of Outputs: 1
• On-state Resistance: 60 mOhm
• Current - Output / Channel: 2.5A
• Current - Peak Output: 6A
• Voltage - Supply: 5.5 V ~ 36 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Supply Voltage (min): 5.5 V
• Supply Current: 1.8 mA
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Maximum Turn-off Delay Time: 35000 ns
• Maximum Turn-on Delay Time: 12000 ns
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

VN751S
7
Reverse polarity protection
A schematic solution to protect the IC against a reverse polarity condition is proposed.
This schematic is effective with any type of load connected to the outputs of the IC.
The RGND resistor value can be selected according to the following conditions to be met:
R
R
where -IGND is the DC reverse ground pin current and can be found in the absolute
maximum rating section of the device datasheet.
The power dissipation associated to R
PD = (-V
This resistor can be shared by several different ICs. In such case I
the sum of the maximum ON-state currents of the different devices.
Please note that if the microprocessor ground and the device ground are separated then the
voltage drop across the R
between the generated input level and the IC input signal level. This voltage drop will vary
depending on how many devices are ON in the case of several high side switches sharing
the same R
Figure 9.
GND
GND
≤
≥
600 mV / (I
(-V
CC
CC
)
GND
2
Reverse polarity protection
/R
) / (-I
GND
.
GND
S
in ON state max).
)
GND
Status
Status
Doc ID 12320 Rev 7
(given by I
Input
Input
(Optional)
(Optional)
i
i
i
i
R
R
GND
GND
GND
S
+ Vcc
+ Vcc
in ON state max * R
during reverse polarity condition is:
GND
GND
Output
Output
i
i
Load
Load
Reverse polarity protection
GND
S
) produce a difference
value on formula (1) is
11/17